Descendant of John Roylance looking for info :-)

I am a descendant of John Roylance/Rylance born 1800 in England. thats all I know of him except that he married Martha Keing or Keeny on April 4, 1833 in Jackson County, Missouri. She was born 1810 in Tennessee. I have one son listed as William T. born Sept 1, 1849 in Cass County, Missouri & died July 23, 1924. There is another son James born in Missouri in 1849 but I think that date has to be wrong. William married Ponecy A. Goodwin on Aug 13, 1872 in Johnson County, Missouri. They are both buried in Ames, Oklahoma.It seems many records in Missouri were lost with fires. John and Martha were my maternal GG grandparents and there lies my brick wall. Any Info???